A study by the Centers for Disease Control released March 11th 2008 estimates that one in four (26 percent) young women between the ages of 14 and 19 in the United States – or 3.2 million teenage girls – is infected with at least one of the most common sexually transmitted diseases (human papillomavirus (HPV), chlamydia, herpes simplex virus, and trichomoniasis).  To read the Centers press release, click here.